<nav class="navbar navbar-static-top navbar-mind" role="navigation">
            <div class="container">
               
                <div class="collapse navbar-collapse navbar-mind-collapse">
                    <ul class="nav navbar-nav">
                        <?php include_once'itens_menu.php';?>       
                    </ul> <!-- nav nabvar-nav -->

                    <ul class="nav navbar-nav navbar-right">
                        <li class="dropdown">
                            <?='<li class="dropdown">'.anchor(base_url(). "administracao/principalcontroller" , 'Login', array('title'=>'Contato','class'=>'dropdown-toggle')).'</li>';?>                                              
 
                            <div class="dropdown-menu dropdown-login animated fadeInUp">
                                <form role="form">
                                    <h4 class="section-title">Formulário de Login</h4>
         
                                    <div class="form-group">
                                        <div class="input-group login-input">
                                            <span class="input-group-addon"><i class="fa fa-user"></i></span>
                                            <input type="text" class="form-control" placeholder="Digite seu email">
                                        </div>
                                        <br>
                                        <div class="input-group login-input">
                                            <span class="input-group-addon"><i class="fa fa-lock"></i></span>
                                            <input type="txt" class="form-control" placeholder="Digite seu cpf">
                                        </div>
                                       
                                        <button type="submit" class="btn btn-primary pull-right">Enviar</button>
                                        <div class="clearfix"></div>
                                    </div>
                                </form>      
                            </div>
                        </li> 
                    </ul> <!-- nav nabvar-nav -->
                </div><!-- navbar-collapse -->
            </div> <!-- container -->
        </nav> <!-- navbar navbar-default -->